3. MOUNTING THE EQUIPMENT

3.1 Mounting the Hull Unit and Receiver Unit

Location of hull unit

Decide the location of the hull unit through consultation with the dockyard and shipowner. When deciding the location, the following points should be taken into account.

•Select an area where propeller noise, cruising noise, air bubbles and interference from turbu- lence are at a minimum. Generally, the point at 1/3 to 1/2 of the ship’s length from the bow on or near the keel is optimum. On-the-keel installation is advantageous for minimizing oil consumption in comparison with off-the-keel. If the hull unit can not be installed on the keel, the center of the retraction tank should be within 600 mm of the keel to prevent a rolling effect.

Figure 3-1 Hull unit mounting location

•Select a place where the hull bottom is flat and the draft is sufficiently deep. Normally, the transducer should protrude at least 500 mm beyond the keel to minimize the effect of air foam and bubbles.

•Select a place where interference from other equipment is minimal. The hull unit should be at least 2.5 m away from the transducers of other equipment.

•No obstacle should be in the fore direction since it causes a shadow zone and aerated water, resulting in poor sonar performance.

•The space shown in the figure on the next page is required around the hull unit for wiring and maintenance.

•If the ambient temperature of the unit is below 0°C, provide the sonar compartment with a heater to keep the temperature above 0°C.

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Furuno CSH-23F, CSH-24F manual Mounting the Hull Unit and Receiver Unit, Location of hull unit
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CSH-24F, CSH-23F, CSH-23, CSH-24 specifications

Furuno, a leader in marine electronics, has developed a range of advanced marine radar systems known as the CSH series. The CSH-24, CSH-23, CSH-23F, and CSH-24F are particularly notable for their innovative technologies, designed to enhance navigational safety and operational efficiency for vessels of various sizes.

The CSH-24 and CSH-23 models are known for their impressive 24 GHz and 23 GHz frequency bands, offering high-resolution imagery and enhanced target detection capabilities. These radars utilize Furuno’s digital signal processing technology, which significantly improves target discrimination, even in cluttered environments. This feature is invaluable for navigational safety, especially in busy waterways or coastal areas.

One of the key highlights of the CSH series is its advanced Automatic Radar Plotting Aid (ARPA) functionality, which enables the proactive monitoring of marine traffic. With the ability to track multiple targets simultaneously, mariners can make more informed decisions, avoiding potential collisions and ensuring smoother navigation. Additionally, the systems provide enhanced Tracking History that allows users to analyze target movements over time.

The CSH-24F and CSH-23F models incorporate Furuno's cutting-edge features, including Fast Target Tracking and Target Predictive Motion, which further enhances reactive capabilities. These radars also offer an intuitive user interface, making it easy to operate and customize settings to fit specific navigational requirements. The displays are designed for readability, even under challenging lighting conditions, thanks to advanced anti-glare technologies.

Built with ruggedness in mind, the CSH series is designed to withstand harsh marine environments. The robust construction and weatherproof design ensure that the systems perform reliably, regardless of sea conditions. Moreover, these radar systems are compatible with a range of marine integration options, allowing for seamless connectivity with other onboard navigation equipment.

In summary, the Furuno CSH-24, CSH-23, CSH-23F, and CSH-24F radars embody a blend of advanced technology, robust design, and user-friendly interfaces. These systems stand out in the marine electronics market for their reliability and precision, making them an excellent choice for maritime professionals seeking enhanced safety and efficiency on the water.
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